For man sin is not just an act but an attitude
Man is not a sinner because he is a transgressor but he is a transgressor because he is already a sinner
The offence is not only in the transgression but in the intention
The offence is not only in the transgression but in the intention too
The offence is not only in the violation of the law but in the disposition of the heart too

Summery of summon on mount
Lust is adultery even if it never goes beyond desire
Hateful anger is muder even if blood is never spilled
Materialism is lust of the eye even if one is not rich

This is so because the seat of sin is in the heart of the will not only in action

It's interesting to note that while all of us may not violate all the commandments,we are generally very proud of those we keep and have no sympathy for those who violate those we don't commit